EGTS

[Marty Z]

Bigger turbo = more AIR = lower EGTS

[Ptothej]

in the mean time.. worth while to up the charge pipes to 3" with factory intercooler?

[Marty Z]

in the mean time.. worth while to up the charge pipes to 3" with factory intercooler?

It will help some,but you need more air.

[Ptothej]

Thankyou for your answer, I hate to sound like a dumbass hahah.

[Tacoclaw]

Looking at your sig, I don't see any mention on injectors. Aren't ICed injectors known to be on the small side? I can't imagine you'd need a different turbo to cool them.

If you're worried about EGTs, I'd just pull the fuel pin and put it a stocker back in. Or, turn the starwheel up so that the pin can't go down all the way. It'll be a cheap way to keep them in check.

[Richie O]

Looking at your sig, I don't see any mention on injectors. Aren't ICed injectors known to be on the small side? I can't imagine you'd need a different turbo to cool them.

My 92 with the tamper cap on the pump and stock injectors will get to 1300 degrees and thats with only a ground fuel cone for mods. It really does not take much to get hot. I gained around 3 psi of boost when I put the ground cone in, but it did put me in the melt zone.

[Tacoclaw]

Shows what I know.

[Ptothej]

I purchased a 19.5 runabout which weighs in at about 4000lbs with trailer. I have to pull it an hr east to dump it in the lake, and I hit one big brutal hill steep and about 2km long along my way. Usually Im 900 post turbo at 100km/h and 3/4 throttle, 750-800 on the flat, I dont like to push past 30lbs of boost so I lift to regulate that, although 25psi is my average max give or take. For what I do 3/4 throttle is all the power I usually need going up the hills on the highways where I drive with a load. Empty Im probably warmer then it should be but is about 28-30psi WOT, with that said I dont want to back off the fuel because I like where it sits power wise, I would like to just cool it off a bit and call it a day with engine mods.

[Underpsi]

The reason for most trucks being more tolerable to the heat is because they have steel top pistons unlike the 5.9 which is aluminum. Aluminum is softer as we all know and has a melting point of 1200deg. The big trucks only worry about heat not to burning the piston but scoring the liners from excessive heat to the rings.

I may have a Electronic kitty cat putting out some big power....

[Horus]

(Crawls out slowly from behind the thread)

I, well, have a confession to make...













My pyro is post-turbo. I've seen mine around 1000 degrees a few times towing. The most it has ever been was just under 1100 as the needle showed. I didn't know pre and post turbo numbers were so different.




I'm scared.

[Ptothej]

(Crawls out slowly from behind the thread)

I, well, have a confession to make.
My pyro is post-turbo. I've seen mine around 1000 degrees a few times towing. The most it has ever been was just under 1100 as the needle showed. I didn't know pre and post turbo numbers were so different.
I'm scared.

ugggg.. your sig doesnt show much fuel added? Unless I read that wrong.. or are you just pulling really heavy? What does a stock truck get up to?

[1STGENFARMBOY]

My pyro is post-turbo. I've seen mine around 1000 degrees a few times towing.




I'm scared.

As you should be.........the very first thing i would do is change your pyro to pre turbo, then you can go from there.

If one hill is all that is causing a problem then just slow down and drop a gear or two.

Dar

[Horus]

I've not towed with the truck since doing the 366 spring. The truck was dead stock except for this Dynamite Diesel "Power Pin." The tamper cap fell off the fuel screw when I did the spring but it is only in a turn or so from where it was with the collar on. It idles about 200 rpm higher with the screw in where it is now.

Normal load is a beat to crap Grand Cherokee with 3/4 ton axles and 36 inch TSL SXs. I pull it on a 10K trailer. Figure 4360 pounds for the last working trail rig I had plus 2400 pounds for the trailer. Basically I'm pulling the curb weight of the truck around.

There are no long drawn out hills where I tow regularly and the times I do have to climb are very brief. I'm not worried as the truck has been this way for a long time. I know the previous owner and had known the truck for a while before I owned it. Towing Jeeps around Washington is what this truck has done the last decade at the very least. The original owner bought it from the Dodge dealer 15 minutes from my present location.

That said, I will move the probe before I tow again.

[Ptothej]

so at 30lbs of boost, I still need more airflow? Or is my stock turbo out of efficieny and isnt doing me any justice?